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3.80
make.h
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Paul Smith
Fix HAVE_BROKEN_RESTART logic.
11 сен 2002, 20:55
11 сен 2002, 20:55
4a11acf
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/* Miscellaneous global declarations and portability cruft for GNU Make. Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2002 Free Software Foundation, Inc. This file is part of GNU Make. GNU Make is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Make; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* We use <config.h> instead of "config.h" so that a compilation using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h (which it would do because make.h was found in $srcdir). */ #include <config.h> #undef HAVE_CONFIG_H #define HAVE_CONFIG_H 1 /* AIX requires this to be the first thing in the file. */ #ifndef __GNUC__ # if HAVE_ALLOCA_H # include <alloca.h> # else # ifdef _AIX #pragma alloca # else # ifndef alloca /* predefined by HP cc +Olibcalls */ char *alloca (); # endif # endif # endif #endif /* Use prototypes if available. */ #if defined (__cplusplus) || (defined (__STDC__) && __STDC__) # undef PARAMS # define PARAMS(protos) protos #else /* Not C++ or ANSI C. */ # undef PARAMS # define PARAMS(protos) () #endif /* C++ or ANSI C. */ /* Specify we want GNU source code. This must be defined before any system headers are included. */ #define _GNU_SOURCE 1 #ifdef CRAY /* This must happen before #include <signal.h> so that the declaration therein is changed. */ # define signal bsdsignal #endif /* If we're compiling for the dmalloc debugger, turn off string inlining. */ #if defined(HAVE_DMALLOC_H) && defined(__GNUC__) # define __NO_STRING_INLINES #endif #include <sys/types.h> #include <sys/stat.h> #include <signal.h> #include <stdio.h> #include <ctype.h> #ifdef HAVE_SYS_TIMEB_H /* SCO 3.2 "devsys 4.2" has a prototype for `ftime' in <time.h> that bombs unless <sys/timeb.h> has been included first. Does every system have a <sys/timeb.h>? If any does not, configure should check for it. */ # include <sys/timeb.h> #endif #if TIME_WITH_SYS_TIME # include <sys/time.h> # include <time.h> #else # if HAVE_SYS_TIME_H # include <sys/time.h> # else # include <time.h> # endif #endif #include <errno.h> #ifndef errno extern int errno; #endif #ifndef isblank # define isblank(c) ((c) == ' ' || (c) == '\t') #endif #ifdef HAVE_UNISTD_H # include <unistd.h> /* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get POSIX.1 behavior with `cc -YPOSIX', which predefines POSIX itself! */ # if defined (_POSIX_VERSION) && !defined (ultrix) && !defined (VMS) # define POSIX 1 # endif #endif /* Some systems define _POSIX_VERSION but are not really POSIX.1. */ #if (defined (butterfly) || defined (__arm) || (defined (__mips) && defined (_SYSTYPE_SVR3)) || (defined (sequent) && defined (i386))) # undef POSIX #endif #if !defined (POSIX) && defined (_AIX) && defined (_POSIX_SOURCE) # define POSIX 1 #endif #ifndef RETSIGTYPE # define RETSIGTYPE void #endif #ifndef sigmask # define sigmask(sig) (1 << ((sig) - 1)) #endif #ifndef HAVE_SA_RESTART # define SA_RESTART 0 #endif #ifdef HAVE_LIMITS_H # include <limits.h> #endif #ifdef HAVE_SYS_PARAM_H # include <sys/param.h> #endif #ifndef PATH_MAX # ifndef POSIX # define PATH_MAX MAXPATHLEN # endif #endif #ifndef MAXPATHLEN # define MAXPATHLEN 1024 #endif #ifdef PATH_MAX # define GET_PATH_MAX PATH_MAX # define PATH_VAR(var) char var[PATH_MAX] #else # define NEED_GET_PATH_MAX 1 # define GET_PATH_MAX (get_path_max ()) # define PATH_VAR(var) char *var = (char *) alloca (GET_PATH_MAX) extern unsigned int get_path_max PARAMS ((void)); #endif #ifndef CHAR_BIT # define CHAR_BIT 8 #endif /* Nonzero if the integer type T is signed. */ #define INTEGER_TYPE_SIGNED(t) ((t) -1 < 0) /* The minimum and maximum values for the integer type T. Use ~ (t) 0, not -1, for portability to 1's complement hosts. */ #define INTEGER_TYPE_MINIMUM(t) \ (! INTEGER_TYPE_SIGNED (t) ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)) #define INTEGER_TYPE_MAXIMUM(t) (~ (t) 0 - INTEGER_TYPE_MINIMUM (t)) #ifndef CHAR_MAX # define CHAR_MAX INTEGER_TYPE_MAXIMUM (char) #endif #ifdef STAT_MACROS_BROKEN # ifdef S_ISREG # undef S_ISREG # endif # ifdef S_ISDIR # undef S_ISDIR # endif #endif /* STAT_MACROS_BROKEN. */ #ifndef S_ISREG # define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG) #endif #ifndef S_ISDIR # define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) #endif #ifdef VMS # include <types.h> # include <unixlib.h> # include <unixio.h> # include <perror.h> /* Needed to use alloca on VMS. */ # include <builtins.h> #endif #ifndef __attribute__ /* This feature is available in gcc versions 2.5 and later. */ # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ # define __attribute__(x) # endif /* The __-protected variants of `format' and `printf' attributes are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) # define __format__ format # define __printf__ printf # endif #endif #if defined (STDC_HEADERS) || defined (__GNU_LIBRARY__) # include <stdlib.h> # include <string.h> # define ANSI_STRING 1 #else /* No standard headers. */ # ifdef HAVE_STRING_H # include <string.h> # define ANSI_STRING 1 # else # include <strings.h> # endif # ifdef HAVE_MEMORY_H # include <memory.h> # endif # ifdef HAVE_STDLIB_H # include <stdlib.h> # else extern char *malloc PARAMS ((int)); extern char *realloc PARAMS ((char *, int)); extern void free PARAMS ((char *)); extern void abort PARAMS ((void)) __attribute__ ((noreturn)); extern void exit PARAMS ((int)) __attribute__ ((noreturn)); # endif /* HAVE_STDLIB_H. */ #endif /* Standard headers. */ /* These should be in stdlib.h. Make sure we have them. */ #ifndef EXIT_SUCCESS # define EXIT_SUCCESS 0 #endif #ifndef EXIT_FAILURE # define EXIT_FAILURE 0 #endif #ifdef ANSI_STRING # ifndef bcmp # define bcmp(s1, s2, n) memcmp ((s1), (s2), (n)) # endif # ifndef bzero # define bzero(s, n) memset ((s), 0, (n)) # endif # if defined(HAVE_MEMMOVE) && !defined(bcopy) # define bcopy(s, d, n) memmove ((d), (s), (n)) # endif #else /* Not ANSI_STRING. */ # ifndef HAVE_STRCHR # define strchr(s, c) index((s), (c)) # define strrchr(s, c) rindex((s), (c)) # endif # ifndef bcmp extern int bcmp PARAMS ((const char *, const char *, int)); # endif # ifndef bzero extern void bzero PARAMS ((char *, int)); #endif # ifndef bcopy extern void bcopy PARAMS ((const char *b1, char *b2, int)); # endif #endif /* ANSI_STRING. */ #undef ANSI_STRING /* SCO Xenix has a buggy macro definition in <string.h>. */ #undef strerror #if !defined(ANSI_STRING) && !defined(__DECC) extern char *strerror PARAMS ((int errnum)); #endif #if HAVE_INTTYPES_H # include <inttypes.h> #endif #define FILE_TIMESTAMP uintmax_t #if !defined(HAVE_STRSIGNAL) extern char *strsignal PARAMS ((int signum)); #endif /* ISDIGIT offers the following features: - Its arg may be any int or unsigned int; it need not be an unsigned char. - It's guaranteed to evaluate its argument exactly once. NOTE! Make relies on this behavior, don't change it! - It's typically faster. POSIX 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that only '0' through '9' are digits. Prefer ISDIGIT to isdigit() unless it's important to use the locale's definition of `digit' even when the host does not conform to POSIX. */ #define ISDIGIT(c) ((unsigned) (c) - '0' <= 9) #ifndef iAPX286 # define streq(a, b) \ ((a) == (b) || \ (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1)))) # ifdef HAVE_CASE_INSENSITIVE_FS /* This is only used on Windows/DOS platforms, so we assume strcmpi(). */ # define strieq(a, b) \ ((a) == (b) \ || (tolower((unsigned char)*(a)) == tolower((unsigned char)*(b)) \ && (*(a) == '\0' || !strcmpi ((a) + 1, (b) + 1)))) # else # define strieq(a, b) streq(a, b) # endif #else /* Buggy compiler can't handle this. */ # define streq(a, b) (strcmp ((a), (b)) == 0) # define strieq(a, b) (strcmp ((a), (b)) == 0) #endif #define strneq(a, b, l) (strncmp ((a), (b), (l)) == 0) #ifdef VMS extern int strcmpi (const char *,const char *); #endif #if defined(__GNUC__) || defined(ENUM_BITFIELDS) # define ENUM_BITFIELD(bits) :bits #else # define ENUM_BITFIELD(bits) #endif /* Handle gettext and locales. */ #if HAVE_LOCALE_H # include <locale.h> #else # define setlocale(category, locale) #endif #include <gettext.h> #define _(msgid) gettext (msgid) #define N_(msgid) gettext_noop (msgid) #define S_(msg1,msg2,num) ngettext (msg1,msg2,num) /* Handle other OSs. */ #if defined(__MSDOS__) || defined(WINDOWS32) # define PATH_SEPARATOR_CHAR ';' #else # if defined(VMS) # define PATH_SEPARATOR_CHAR ',' # else # define PATH_SEPARATOR_CHAR ':' # endif #endif #ifdef WINDOWS32 # include <fcntl.h> # include <malloc.h> # define pipe(p) _pipe(p, 512, O_BINARY) # define kill(pid,sig) w32_kill(pid,sig) extern void sync_Path_environment(void); extern int kill(int pid, int sig); extern int safe_stat(char *file, struct stat *sb); extern char *end_of_token_w32(char *s, char stopchar); extern int find_and_set_default_shell(char *token); /* indicates whether or not we have Bourne shell */ extern int no_default_sh_exe; /* is default_shell unixy? */ extern int unixy_shell; #endif /* WINDOWS32 */ struct floc { char *filenm; unsigned long lineno; }; #define NILF ((struct floc *)0) #define STRING_SIZE_TUPLE(_s) (_s), (sizeof (_s)-1) /* Fancy processing for variadic functions in both ANSI and pre-ANSI compilers. */ #if defined __STDC__ && __STDC__ extern void message (int prefix, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3))); extern void error (const struct floc *flocp, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3))); extern void fatal (const struct floc *flocp, const char *fmt, ...) __attribute__ ((noreturn, __format__ (__printf__, 2, 3))); #else extern void message (); extern void error (); extern void fatal (); #endif extern void die PARAMS ((int)) __attribute__ ((noreturn)); extern void log_working_directory PARAMS ((int)); extern void pfatal_with_name PARAMS ((const char *)) __attribute__ ((noreturn)); extern void perror_with_name PARAMS ((const char *, const char *)); extern char *savestring PARAMS ((const char *, unsigned int)); extern char *concat PARAMS ((const char *, const char *, const char *)); extern char *xmalloc PARAMS ((unsigned int)); extern char *xrealloc PARAMS ((char *, unsigned int)); extern char *xstrdup PARAMS ((const char *)); extern char *find_next_token PARAMS ((char **, unsigned int *)); extern char *next_token PARAMS ((const char *)); extern char *end_of_token PARAMS ((char *)); extern void collapse_continuations PARAMS ((char *)); extern void remove_comments PARAMS((char *)); extern char *sindex PARAMS ((const char *, unsigned int, \ const char *, unsigned int)); extern char *lindex PARAMS ((const char *, const char *, int)); extern int alpha_compare PARAMS ((const void *, const void *)); extern void print_spaces PARAMS ((unsigned int)); extern char *find_char_unquote PARAMS ((char *, int, int, int)); extern char *find_percent PARAMS ((char *)); extern FILE *open_tmpfile PARAMS ((char **, const char *)); #ifndef NO_ARCHIVES extern int ar_name PARAMS ((char *)); extern void ar_parse_name PARAMS ((char *, char **, char **)); extern int ar_touch PARAMS ((char *)); extern time_t ar_member_date PARAMS ((char *)); #endif extern int dir_file_exists_p PARAMS ((char *, char *)); extern int file_exists_p PARAMS ((char *)); extern int file_impossible_p PARAMS ((char *)); extern void file_impossible PARAMS ((char *)); extern char *dir_name PARAMS ((char *)); extern void hash_init_directories PARAMS ((void)); extern void define_default_variables PARAMS ((void)); extern void set_default_suffixes PARAMS ((void)); extern void install_default_suffix_rules PARAMS ((void)); extern void install_default_implicit_rules PARAMS ((void)); extern void build_vpath_lists PARAMS ((void)); extern void construct_vpath_list PARAMS ((char *pattern, char *dirpath)); extern int vpath_search PARAMS ((char **file, FILE_TIMESTAMP *mtime_ptr)); extern int gpath_search PARAMS ((char *file, int len)); extern void construct_include_path PARAMS ((char **arg_dirs)); extern void user_access PARAMS ((void)); extern void make_access PARAMS ((void)); extern void child_access PARAMS ((void)); #ifdef HAVE_VFORK_H # include <vfork.h> #endif /* We omit these declarations on non-POSIX systems which define _POSIX_VERSION, because such systems often declare them in header files anyway. */ #if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION) && !defined(WINDOWS32) extern long int atol (); # ifndef VMS extern long int lseek (); # endif #endif /* Not GNU C library or POSIX. */ #ifdef HAVE_GETCWD # if !defined(VMS) && !defined(__DECC) extern char *getcwd (); #endif #else extern char *getwd (); # define getcwd(buf, len) getwd (buf) #endif extern const struct floc *reading_file; extern char **environ; extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag; extern int print_data_base_flag, question_flag, touch_flag, always_make_flag; extern int env_overrides, no_builtin_rules_flag, no_builtin_variables_flag; extern int print_version_flag, print_directory_flag; extern int warn_undefined_variables_flag, posix_pedantic, not_parallel; extern int clock_skew_detected; /* can we run commands via 'sh -c xxx' or must we use batch files? */ extern int batch_mode_shell; extern unsigned int job_slots; extern int job_fds[2]; extern int job_rfd; #ifndef NO_FLOAT extern double max_load_average; #else extern int max_load_average; #endif extern char *program; extern char *starting_directory; extern unsigned int makelevel; extern char *version_string, *remote_description; extern unsigned int commands_started; extern int handling_fatal_signal; #ifndef MIN #define MIN(_a,_b) ((_a)<(_b)?(_a):(_b)) #endif #ifndef MAX #define MAX(_a,_b) ((_a)>(_b)?(_a):(_b)) #endif #ifdef VMS # define MAKE_SUCCESS 1 # define MAKE_TROUBLE 2 # define MAKE_FAILURE 3 #else # define MAKE_SUCCESS 0 # define MAKE_TROUBLE 1 # define MAKE_FAILURE 2 #endif /* Set up heap debugging library dmalloc. */ #ifdef HAVE_DMALLOC_H #include <dmalloc.h> #endif /* If we have broken SA_RESTART support, then wrap stat() and readdir() with versions that handle EINTR. Note that there are still plenty of system calls that can fail with EINTR but this, reportedly, gets the vast majority of failure cases. If you still experience failures you'll need to either get a system where SA_RESTART works, or you need to avoid -j. */ #ifdef HAVE_BROKEN_RESTART /* Here we make an assumption that a system with a broken SA_RESTART has dirent.h. Right now the only system I know of in this category is PTX, and it does have dirent.h. */ #include <dirent.h> #define stat(_f,_b) atomic_stat ((_f), (_b)) #define readdir(_d) atomic_readdir (_d) extern int atomic_stat PARAMS ((const char *file, struct stat *buf)); extern struct dirent *atomic_readdir PARAMS ((DIR *dir)); #endif